BIG BEAR LAKE DWP - BIG BEAR SYSTEM Water Quality Report
Serving roughly 26,132 people in San Bernardino County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
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Results for BIG BEAR LAKE DWP - BIG BEAR SYSTEM
1 water provider directly on file, serving roughly 26,132 people in San Bernardino County, California.
Quick answer: BIG BEAR LAKE DWP - BIG BEAR SYSTEM has no violations on file and no single reading stands out against its peers (669 other providers in this area). It serves roughly 26,132 people, and the full breakdown below reflects everything EPA and California have on record for it.
Lead Summary
PFBS
PFHXS
Lithium
PFOS
PFOA
Perfluorobutanesulfonicacid (PFBS)
Perfluorohexanesulfonicacid (PFHxS)
Perfluoroctanoicacid (PFOA)
Perfluoroheptanoicacid (PFHPA)
Perfluorohexanoicacid (PFHXA)
Perfluorobutanoicacid (PFBA)
Nitrate
Perfluoroctanesulfonicacid (PFOS)
Gross Alpha Particle Activity
Chromium, Hex
Utility BIG BEAR LAKE DWP - BIG BEAR SYSTEMPopulation served 26,132Owner Local government
No violations on file
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2023
Chromium, Hex
Detected: 0.19 UG/L (ppb)
2/19/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Nitrate
Detected: 0.7 MG/L (ppm)
10/7/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Gross Alpha Particle Activity
Detected: 3.3 PCI/L
9/3/2025
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
PFBS
Detected: 0.0034 µg/L (ppb)
4/24/2024
PFHXS
Detected: 0.0062 µg/L (ppb)
4/24/2024
Lithium
Detected: 12.5 µg/L (ppb)
4/17/2024
Occurs naturally in some groundwater. Not currently federally regulated in drinking water.
PFOS
Detected: 0.0061 µg/L (ppb)
11/16/2023
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
PFOA
Detected: 0.0055 µg/L (ppb)
4/18/2024
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Other
Additional substances tested that don't fit neatly into the categories above
Perfluorobutanesulfonicacid (PFBS)
Detected: 4.5 NG/L (ppt)
8/27/2025
Perfluorohexanesulfonicacid (PFHxS)
Detected: 5.9 NG/L (ppt)
8/27/2025
Perfluoroctanoicacid (PFOA)
Detected: 4.1 NG/L (ppt)
8/27/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluoroheptanoicacid (PFHPA)
Detected: 2.5 NG/L (ppt)
5/14/2025
Perfluorohexanoicacid (PFHXA)
Detected: 2.2 NG/L (ppt)
8/27/2025
Perfluorobutanoicacid (PFBA)
Detected: 2.8 NG/L (ppt)
5/14/2025
Perfluoroctanesulfonicacid (PFOS)
Detected: 2.9 NG/L (ppt)
8/27/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Filtration considerations: See the table below for how whole-house carbon, under-sink reverse osmosis, and under-sink carbon systems compare against what's actually on file here. These are general system types, not a specific product recommendation.